Lubricator.



- PATENTED AUG. 11, 1908. G. GOMSTOGK. LUBRIGATOR. APPLICATION FILEDAUG. 14, 1907.

. 2 SHEETS-SHEET 1.;

' z vent r 672252? By his Attorney Witnesses (amstqck M PATENTED AUG.11, 1908.

C. COMSTOCK. LUBRIGATOR. 1 APPLICATION FILED we. 14, 1907 Y 2SHEETS-SHEET 2.

9 A hn 2 l I m wmmw IHHWV 1 1 l I I v Inventor C/zeszer [22/725230];

By his .Attorn Witnesses UNITED STATES PATENT OFFICE.

CHESTER OOMSTOOK, OF RIDGEWOOD, NEW JERSEY.

LUBRICA'IOR.

To all whom it may concern:

Be it known that I, CHESTER CoMsTocK, a citizen of the United States,residing in Ridgewood, in the county of Bergen and State of New Jersey,have invented certain new and useful Improvements in Lubricators, ofwhich the following is a speciflcation.

This invention relates to force feed lubricators, and especially tomixing cups for such devices, wherein a non-fluid lubricant, such asgraphite, or finely comminuted mica is mixed with fluid lubricants suchas ordinary lubricating oil to form a fluid mixture that can be readilyfed through a conduit to a bearing.

In United States Letters Patent granted to me January 24th, 1905, Nos.780,778 and 780,779, also Patent 825,586 are shown mixing cups whereinthe oil or lubricant -is caused to flow across the top of a quantity ofgraphite, causing the latter to mix therewith-as the oil runs off into aconduit and the mixture in fluid form is fed to the bear- .In thepresent invention means are provided whereby the fluid lubricant isbrought into engagement, not with the top surface of a mass of graphite,but with the lower or bottom surface of the graphite, or other nonfluidlubricant, contained in a suitable receptacle. The lubricant ispreferably ted in small quantities, as drop by drop, and is brought intoengagement with the graphite at the bottom of the receptacle, and causedto pass along a certain portion of the graphite surface to an outletmember. During this passage, the drop or quantity of oil will cause acertain amount of graphite to be incorporated therewith, that will becarried along to the exit, and still adhere thereto when the drop isdelivered to the'bearing. In such construction, which is especiallydesigned to feed cylinders and other bearings of motors under pressure,the pressure of the delivery passage is communicated to the top of thegraphite in the receptacle causing the graphite to feed down to thecomparatively small or restricted opening, through which the oil passesout into the delivery passage. Such outlet in the receptacle is so smallthat the graphite alone will not be forced there through, because of itslack of fluidity, and

Specification of Iletters Patent.

Application filed August 14, 1907.

Patented Aug. 11, 1908.

Serial No. 388,446.

also because of the back pressure through this small opening from thecylinder that is being supplied; but such back pressure has freeadmission through a larger passage to the upper part of the receptacleon top ofthe graphite and will force it down into proximity to therestricted outlet opening. The admission passage for the oil that is fedunder pressure, preferably from a force feed lubricator of suitableform, is preferably provided with a check-valve, so that when thepressure in the cylinder that is fed is at a maximum, there will be noreturn or backflow of the oil, that might cause some graphite to beforced back with it.

A further object of the invention is to provide means in the nature of adiaphragm to vary the feed of the graphite to the small restrictedopening in the bottom of the graphite receptacle, whereby the proportionof graphite mixed with the oil can be varied as desired. A valve in theadmission passage for the oil is provided for regulating the flow of theoil in any desired manner. It is also desirable to have an outlet in thenature of a blow-off cock adjacent the lower portion of the receptaclefor the purpose of drawing off any accumulation of liquid such as waterthat may accumulate on top of the graphite when the lubricator is usedwith steam cylinders. It is also desirable to provide a cut-off valve inthe delivery passage to out off the pressure from the engine, when it isdesired to refill the graphite cup, or to put the device out of us Inthe accompanying drawing, representing embodiments of my invention,Figure 1 is a vertical axial section through the device. Fig. 2 is avertical section taken at right angles to the section of Fig. 1. Fig. 3is a section on the line 33 indicated in Fig. 2. Fig. 4 is a Viewcorresponding to Fig. 3 but with the diaphragm member in anotherposition. Fig. 5 is a transverse section e11- :larged on the line 5-5indicated in Fig. 1. Fig. 6 is a vertical section enlarged on the line6-6 indicated in Fig. 2. Fig. 7 is a fragmentary vertical sectionenlarged corresponding to the section of Fig. 2; and Fig. 8 is a view inperspective of the diaphragm member regulating the graphite supply tothe outlet portion of the receptacle.

In the construction illustrated embodying my invention, a receptacle 12is shown for containing the graphite or other non-fluid lubricant, thatis provided with a removable top 13, that fits tightly to prevent escapeof fluid or gas under pressure. The bottom portion or stem 14 isprovided with a verti cal bore 15 that has a suitable outlet passageconnecting therewith. In the construction illustrated, the outletpassage 16 is shown as forming an outlet at one side of the device,

the two passages constituting a delivery pas- The receptacle providing aclear passage of considerable area for back pressure from the engine orother place supplied with the lubricant, enabling the back pressure toact on top of the graphite in the receptacle 12 and force it downward asit is fed therefrom at the bottom. The outlet delivery passage 15 may beprovided with a plug valve 20 to close the passage when desired, whichmay be of any convenient form. This valve will shut off the backpressure when it is desired to remove the top 13 to refill thereceptacle.

One or morecomparatively small openings are provided in the tube 19 forthe passage of the mixed ,oil and graphite. Three openings 21 are formedas shown in Figs. 5 and 6 lying in a transverse plane. These openingsare at the lower portion of the receptacle and being very much smallerin area than' that of .the tube 19, the back pressure therethrough willprevent the graphite alone from passage through these small openingsinto the tube and delivery passage. But these restricted openings itwill be observed, are formed in the comparatively thin wall of the tube19, which wall separates the outlet passage through this tube from thereceptacle; and hence these outlets are formed in a comparatively thinwall, and the length of the outlets is comparatively short, therebyreducing the frictional resistance to the passage of the mixed oil andgraphite through these outlets into the delivery passage. These outletsare suflicient in number to provide for the required amount of the mixedoil and graphite being delivered from the device.

In the construction illustrated a recess 22 is formed in the bottommember 17, and an inlet passage 23 opens into the recess, preferably inits bottom wall. This inlet passage 23 is for the admission of the fluidlubricant under pressure, from any suitable force feed lubricator. Theinlet passage 23 connects with a vertical passage 24 that connects withan inlet passage 25 in the stem portion 14.

If desired an inlet valve 26 serves to restrict passage 24, and regulatethe supvply of the oil. It is also desirable to provi e a check valve inthe inlet assage, so. that when the pressure in the cylinder connectlngwith the delivery passage 15, attalns a maximum,

that may exceed the pressure under which valve seat 27 is provided inthe passage 24 on which seats a ball valve 28 that will prevent the oilbeing forced back. The said constricted openings 21 in the tube 19 openinto a side portion 29 of the recess 22, these openings being shown aslocated below the top of the bottom member 17 of the receptacle. Fromthis construction it will be seen that the back pressure through'thedelivery passage 15 into the tube 19 will force graphite in thereceptacle down into the recess 22 and to the restricted outlet passages21. The oil being forced in through the admission passage 23 will engagethe bottom of the graphite in the receptacle, and being guided by thewalls of the recess 22 and its side portion 29 will find exit throughthe restricted passages 21. But in so doing oil will flow along thebottom surface of the graphite in the recess 22, that will admix withthe oil drops, and be carried by them through the .openings 21 into thetube 19. The mixed oil and graphite will thereupon be fed through thepassage 15 and 16 and delivered to the cylinder or other place'to belubricated. It is also desirable to provide'means for regulating thefeed of the graphite down into the recess 22, so that the amount ofgraphite taken up by the oil can be varied. In the constructionillustrated a member in the nature of a diaphragm is caused to shiftacross the top of the recess 22 thereby regulating the feed of thegraphite down into the recess. A, diaphragm member 30 is shownseparately in Fig.8, and has a forked portion 31 that embraces the tube19. The diaphragm has a threaded bore 32 engaged bya screw 33 passingthrough the bore of a bushing 35 screwed into the side of the receptacle12. By turning this screw the diaphragm canbe shifted from its positionshown in Fig. 7 in which the recess is wholly uncovered, to the positionshown in Fig. 4 in which the recess is almost entirely closed to thegraphite. A cap member 36 'is shown as screwing on the bushing 35 tolock the screw 33- in adjusted position.

Where the device is used for feeding the cylinders of steam engines,there will be a condensation in the receptacle 12 that will result inaccumulation of water on top of the graphite. A suitable outlet isprovided for blowing off this water when desired, a blowolf cock 40being shown having a valve 41 by which it can be opened and closed.

While this invention is primarily designed for use with the so-calledforce feed lubricators, that is, with lubricators where the oil issupplied under pressure from a pressure cial pressure devices, it onlybeing necessary to supply the lubricant to the mixing chamher undersuflicient pressure whereby the lu bricant or other fluid will flow intothe admission passage, along the 'bottom of the graphite in the chamber,andout of the small orifice or passage, carrying the ad mixed graphitealong with it. A sufficient pressure would be obtained simply by the useof a column of the lubricant or other fluid whereby a small amount offluid pressure would be furnished] Instead of using oil or a similarlubricating fluid to admix with the graphite in the cup, any othersuitable fluid medium could be employed such as glycerin or water or asaponaceous fluid.

Having described my invention I claim:

1. A mixing device for force feed lubricators, comprising a receptaclefor a non-fluid lubricant, a delivery passage in the device opening intothe receptacle at its upper portion, a comparatively small outletpassage at the lower portion of the receptacle leading into saiddelivery passage, and an admission passage for the fluid under pressureleading into the lower portion of the receptacle.

2. A mixing device for force feed lubricators, comprising a receptaclefor a non-fluid lubricant, a delivery passage in the device openinginto-the receptacle at its upper portion, a plurality of small outletpassages at the lower portion of the receptacle leading into saiddelivery passage, and an admission passage for the fluid under pressureleading into the lower portion of the receptacle.

3. A mixing device for force feed lubricators, comprising a receptaclefor non-fluid lubricant, a delivery passage in the device opening intothe receptacle at its upper portion, a horizontally arranged series ofsmall outlet passages at the lower portion of the receptacle leadinginto said delivery passage, and an admission passage for the lubricantunder pressure opening into the bottom of the receptacle.

4. A mixing device for force feed lubricators, comprising a receptaclefor a non-fluid lubricant, a delivery passage in the device opening intothe receptacle at its upper por tion, a comparatively small outletpassage at the lower portion of the receptacle leading into saiddelivery passage, an admission passage for the lubricant under pressureleading into the lower portion of the receptacle, and a check valve inthe admission passage preventing outflow of the lubricant.

5. A mixing device for force feed lubricators, comprising a receptaclefor a non-fluid lubricant, a delivery passage in the device opening intothe receptacle at its upper portion, asmall outlet passage at the lowerportion of the receptacle leading into said delivery passage, anadmission passage for the lubricant under pressure leading into thelower portion of the receptacle and means in the receptacle forregulating the supply of the non-fluid lubricant accessible to thelubricant flowing from the admission passage to said small outletpassage.

6. A mixing device for force feed lubricators, comprising a receptaclefor non-fluid lubricant, a delivery passage at the lower portion of thereceptacle leading into said deliv ery passage, an admission passage forthe lubricant under pressure opening into the bottom of the receptacle,and an adjustable diaphragm member shiftable in the lower portion of thereceptacle to vary the feeding of the non-fluid lubricant to the outletpassage.

7. A mixing device for force feed lubricators comprising a receptaclefor the non-fluid lubricant, a delivery passage in the device opening inthe receptacle at its upper portion, the receptacle having a recessportion in its bottom member, a small outlet passage in the recessportion leading into said delivery passage, and an admission passageleading into the said recess for the lubricant under pressure.

' 8. A mixing device for force feed lubricators comprising a receptaclefor the non-fluid lubricant, a delivery passage in the device opening inthe receptacle at its upper portion, the receptacle having a recessportion in its bottom member, a small lateral outlet passage in therecess portion leading into said delivery passage, and an admissionpassage leading into the bottom of said recess for the lubricant underpressure.

9. A mixing device for force feed lubricators comprising a receptaclefor the non-fluid lubricant, a delivery passage in the device opening inthe receptacle at its upper portion, the receptacle having a recessportion in its bottom member, a series of small outlet passages in therecess portion leading into said delivery passage, and an admissionpassage leading into the said recess for the lubricant under pressure.

10. A mixing device for force feed lubrica tors comprising a receptaclefor the non-fluid lubricant, a delivery passage in the device opening inthe receptacle at its upper portion, the receptacle having a recessportion in its bottom member, a series of small lateral outlet passagesin the side wall of the recess porpassage from the side wall of therecess portion leading into said delivery passage, and an admissionpassage leading into the said recess for the lubricant under pressure.

12. A mixing device for force feed lubricators comprising a receptaclefor the non-fluid lubricant, a delivery passage in the device opening inthe receptacle at its upper portion, the receptacle having a recessportion in its bottom member, a small lateral outlet passage in' theside wall of the recess portion leading into said delivery passage, anadmission assage leading into the said recess for the ubricant underpressure, and a diaphragm member in the receptacle shiftable across therecess to regulate the feed of the non-fluid lubricant to the recess.

13. A mixing device for force feed lubricators comprising receptacle forthe nonl*luid lubricant, a delivery passage in the device opening in thereceptacle at its upper portion, the receptacle having a recess portionin its bottom member, a small lateral outlet passage from the sidewallof the recess leading into said delivery passage, an admissionpassage leading into the said recess for the lubricant under pressure,and a check valve in the admission passage preventing back flow of thelubricant.

14. A mixing device for force feed lubricators comprising a receptaclefor the non-fluid lubricant having an enlarged delivery passage at thebottom thereof, a tube having one end fitted in said passage andprojecting upwardly through the receptacle opening into its upperportion, said tube having one or more comparatively small passagestherethrough in proximity to the bottom of'the receptacle, and anadmission passage for the lubricant under pressure in thebottom of thereceptacle. I

15. A mixing device for force teed lubricators comprising a receptaclefor the non-fluid lubricant having an enlarged delivery passage at thebottom thereof, a tube having one end fitted in said passage andprojecting upwardly through the receptacle opening into its upperportion, the receptacle having a recess portion in its bottom, one ormore com paratively small passages in the tube leading to said recessportion, the receptacle having an admission passage leading into thebottom of said recess.

16. A mixing device for force feed lubricators, comprising a receptaclefor a non-fluid lubricant, a plurality of small outlet passages at thelower portion of the receptacle leading into said delivery passage,andan admission passage for the lubricant under pressure leading intothe lower portion of the receptacle in proximity to said outlet passagetherein.

17. A mixing device for force feed lubricators, comprising a receptaclefor non-fluid lubricant, a horizontally arranged series otl small outletpassages at the lower portion of.

portion in its bottom member, a series of small lateral outlet passagesin the side wall of the recess portion, and an admission passage leadinginto the bottom of said recess 'for the lubricant under pressure.

20.- A mixing device for force feed lubricators comprising a receptaclefor the nonfluid lubricant, a small outlet passage, an admission passageleading into the said recep tacle for the lubricant under pressure, and

pass from the inlet passage to the outlet passage in contact with thebottom surface of the non-fluid lubricant in the receptacle.

21. A mixing device for force feed lubricators, comprising a receptaclefor the nonfluid lubricant provided with a delivery passage, acomparatively thin wall separating the lower portion of, the receptaclefrom the delivery passage and containing one or more restricted openingsleading from the lower portion of the receptacle into the deliverypassage, and an admission passage opening into the receptacle inproximity to the restricted openings.

22. A mixing device for force feed lubricators, comprising a receptaclefor the non fluid lubricant provided with a delivery passage, acomparatively thin wall separating the lower portion of the receptaclefrom the delivery passage andcontaining one or more restricted openingsleading from the lower portion of the receptacle into the deliverypassage, an admission passage opening into the receptacle in proximityto the restricted openings, and means in the receptacle for regulatingthe supply of the nonfluid lubricant accessible to the lubricant flowingfrom the admission passage to the outlet passages.

23. A mixing device for force feed lubricators, comprising a receptaclefor the nonfluid lubricant having a recess portion in its bottom member,a delivery passage in the receptacle, a comparatively thin wallseparating the recess from the delivery passage and containing one ormore restricted openings leading from the recess into the deliverypassage, and an admission passage opening into the recess portion of thereceptacle.

24. A mixing device for force feed lubrifluid lubricant, the receptaclehaving a recess means for guiding the lubricant to cause it to cators,comprising a receptacle fora 11onbetween the admissionpassage and-theoutlet fluid lubricant, a comparatively small outlet passage. passage atthe lower portion of the receptacle and an admission passage for thelubri- CHESTER OOMSTOOK' 5 cant under pressure leading into the lowerWitnesses:

portion of the receptacle in proximity to said WILLIAM H. REID,

outlet passage therein, and guiding means FRED. J. DOLE.

